class Event:
    evnt : int # 声明变量的类型

e = Event()
e.evnt = 10
print(e.evnt)

e.evnt = "有告警，但是不会报错"
print(e.evnt)

print("-" * 200)

help(print) # 查看内置函数的文档

print("-" * 200)

# 或者直接打印文档字符串
print(print.__doc__)